Daypro is a non-narcotic, non-steroidal anti-inflammatory drug (NSAID), used to relieve the inflammation, swelling, stiffness, and joint pain associated with osteoarthritis and rheumatoid arthritis.

Medicinal name:
  • Oxaprozin 600 MG Oral Tablet [Daypro]

Daypro - Pharmacology:

Antiinflammatory effects of Daypro are believed to be due to inhibition of cylooxygenase in platelets which leads to the blockage of prostaglandin synthesis. Antipyretic effects may be due to action on the hypothalamus, resulting in an increased peripheral blood flow, vasodilation, and subsequent heat dissipation.

Daypro mini report

Daypro NDA
NDA - A product marketed under an approved New Drug Application
Start - Stop data
Start - Stop data
not occurred

Daypro for patients

Daypro, like other drugs of its class, can cause discomfort and, rarely, more serious side effects, such as gastrointestinal bleeding, which may result in hospitalization and even fatal outcomes. Although serious gastrointestinal tract ulcerations and bleeding can occur without warning symptoms, patients should be alert for the signs and symptoms of ulcerations and bleeding, and should ask for medical advice when observing any indicative sign or symptoms. Patients should be apprised of the importance of this follow-up.

Patients should report to their physicians the signs or symptoms of gastrointestinal ulceration or bleeding, skin rash, weight gain, or edema.

Patients should be informed of the warning signs and symptoms of hepatotoxicity (e.g., nausea, fatigue, lethargy, pruritus, jaundice, right upper quadrant tenderness, and “flu-like” symptoms). If these occur, patients should be instructed to stop therapy and seek immediate medical therapy.

Patients should also be instructed to seek immediate emergency help in the case of an anaphylactoid reaction.

In late pregnancy, as with other NSAIDs, Daypro should be avoided because it will cause premature closure of the ductus arteriosus.

Daypro Interactions

Aspirin: Concomitant administration of Daypro and aspirin is not recommended because oxaprozin displaces salicylates from plasma protein binding sites. Coadministration would be expected to increase the risk of salicylate toxicity.

Methotrexate: Coadministration of oxaprozin with methotrexate results in approximately a 36% reduction in apparent oral clearance of methotrexate. A reduction in methotrexate dosage may be considered due to the potential for increased methotrexate toxicity associated with the increased exposure.

ACE-inhibitors: Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors. Daypro has been shown to alter the pharmacokinetics of enalapril (significant decrease in dose-adjusted AUC0-24 and Cmax) and its active metabolite enalaprilat (significant increase in dose-adjusted AUC0-24). This interactionshould be given consideration in patients taking NSAIDs concomitantly with ACE-inhibitors.

Furosemide: Clinical studies, as well as post marketing observations, have shown that Daypro can reduce the natriuretic effect of furosemide and thiazides in some patients. This response has been attributed to inhibition of renal prostaglandin synthesis. During concomitant therapy with NSAIDs, the patient should be observed closely for signs of renal failure (see PRECAUTIONS: Renal effects), as well as to assure diuretic efficacy.

Lithium: Coadministration of oxaprozin with lithium carbonate can cause an increase in serum lithium levels. Whenever oxaprozin is added to or removed from patients on lithium therapy, therapeutic drug monitoring of lithium levels should be performed.

Glyburide: While oxaprozin does alter the pharmacokinetics of glyburide, coadministration of oxaprozin to type II non-insulin dependent diabetic patients did not affect the area under the glucose concentration curve nor the magnitude or duration of control. However, it is advisable to monitor patientsblood glucose in the beginning phase of glyburide and oxaprozin cotherapy.

Warfarin: The effects of warfarin and NSAIDs on gastrointestinal (GI) bleeding are synergistic, such that users of both drugs together have a risk of serious GI bleeding higher than that of users of either drug alone.

H2-receptor antagonists: The total body clearance of oxaprozin was reduced by 20% in subjects who concurrently received therapeutic doses of cimetidine or ranitidine; no other pharmacokinetic parameter was affected. A change of clearance of this magnitude lies within the range of normal variation and is unlikely to produce a clinically detectable difference in the outcome of therapy.

Beta-blockers: Subjects receiving 1200 mg Daypro QD with 100 mg metoprolol bid exhibited statistically significant but transient increases in sitting and standing blood pressures after 14 days. Therefore, as with all NSAIDs, routine blood pressure monitoring should be considered in these patients when starting Daypro therapy.

Other drugs: The coadministration of oxaprozin and antacids, acetaminophen, or conjugated estrogens resulted in no statistically significant changes in pharmacokinetic parameters in single- and/or multiple-dose studies. The interaction of oxaprozin with cardiac glycosides has not been studied.

Laboratory test interactions: False-positive urine immunoassay screening tests for benzodiazepines have been reported in patients taking Daypro. This is due to lack of specificity of the screening tests. False-positive test results may be expected for several days following discontinuation of Daypro therapy. Confirmatory tests, such as gas chromatography/mass spectrometry, will distinguish Daypro from benzodiazepines.

Daypro Contraindications

Daypro is contraindicated in patients with known hypersensitivity to oxaprozin. Daypro should not be given to patients who have experienced asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs. Severe, rarely fatal, anaphylactic-like reactions to NSAIDs have been reported in such patients

Manufacturers name:

  • PD-Rx Pharmaceuticals, Inc
  • GD Searle LLC Division of Pfizer Inc

Daypro tags categories:

Generic name, Overdose, Half Life Daypro, Food Interactions, Chemical, etc..

Daypro see also FDA report

Brand Names containing Oxaprozin

Chemical structure:
O N O O H H H H H H H H H H H H H H H C18H15NO3 2D chemical structure C18H15NO3 SVG | 2D structure Oxaprozin chemical names, chemical properties, classification C18H15NO3